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3 years ago

Which reason best explains why carbon is able to form macromolecules?

Mathematics

2 answers:

Anna11 [10]3 years ago

5 0

Carbon is the biggest element in the world

igor_vitrenko [27]3 years ago

3 0

Answer: Carbon can bond with many elements

Step-by-step explanation:

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Given a mean of 75 and a standard deviation of 7, how many students out of 500

Alla [95]

Answer:

230

Step-by-step explanation:

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3 years ago

If x= 7 - 4√3 then find the value of (a) (x+1/x) rais to 2 b) x rais 2+1/x rais to 2

ololo11 [35]

The equation x = 7 - 4√3 is a radical expression, and the value of the radical expression is $(x + \frac 1x)^2 = 3650401 -2107560\sqrt 3$

<h3>How to solve the expressions?</h3>

The equation is given as:

x = 7 - 4√3

So, we have:

$(x + \frac 1x)^2 = (7 - 4\sqrt 3 + \frac{1}{7 - 4\sqrt 3})^2$

Take the LCM

$(x + \frac 1x)^2 = (\frac{49 -56\sqrt3 + 48}{7 - 4\sqrt 3})^2$

Evaluate the like terms

$(x + \frac 1x)^2 = (\frac{97 -56\sqrt3 }{7 - 4\sqrt 3})^2$

Rationalize

$(x + \frac 1x)^2 = (\frac{(97 -56\sqrt3)(7 - 4\sqrt 3) }{49 -48})^2$

Evaluate the difference

$(x + \frac 1x)^2 = ((97 -56\sqrt3)(7 - 4\sqrt 3))^2$

Expand

$(x + \frac 1x)^2 = (679 -388\sqrt 3 -392\sqrt 3 + 672)^2$

Evaluate the like terms

$(x + \frac 1x)^2 = (1351 -780\sqrt 3 )^2$

Expand

$(x + \frac 1x)^2 = 1825201 +1825200 -2107560\sqrt 3$

$(x + \frac 1x)^2 = 3650401 -2107560\sqrt 3$

Hence, the value of the radical expression is $(x + \frac 1x)^2 = 3650401 -2107560\sqrt 3$

Read more about radical expressions at:

brainly.com/question/8952483

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2 years ago

Cora is building block towers of two different heights. In each tower, the ratio of blue blocks to purple blocks remains the sam

MatroZZZ [7]

Answer:

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2 years ago

Solve for the indicated variable:<br><br> A=1/2(b1+b2) h; for b1

Andrei [34K]

Answer:

a=0.5b+0.5bh don't know if thats right

Step-by-step explanation:

I am thinking you want me to solve for b1

the equation you gave me=a=1/2(b1+b2)h

1.distruibte

2.solve

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3 years ago

What ratios are equivalent to 2 : 7?

vaieri [72.5K]

Answer:

4:14, 6:21, 8:28

Step-by-step explanation:

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3 years ago

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